To understand the characteristics of persons who commit suicide in Kolkata Metro Railway and the nature of events leading to their suicide, a retrospective study was conducted on the victims of suicide in Kolkata Metro Railway. Highest incidence was found in the age group of 35–40 yrs (13 deaths). Office workers constituted 27.5% of all suicides and mental illness was found in 8.6% of the victims. Possible prevention strategies include modification of Metro environment and changing public conceptions of Metro suicides.